91亚洲国产成人久久精品网站,黄 片 成 人 片 免费,午夜成人爽爽爽视频在线观看,人妻精品久久久久中文字幕123

Preparation of high purity quartz sand high purity ultrafine quartz powder technology

Our institute has more than 20 years of research development experience in the field of new materials, has a stable research development team composed of domestic foreign senior experts to ensure the sustainability of research development. In 2005, our institute successfully developed the technology of "high frequency plasma preparation of spherical silicon micropowder", which only improved the series of high-tech products of silicon resources in Lianyungang city, extended expanded the industrial chain of silicon resources in Lianyungang City, but also played a huge role in promoting the development of China's silicon resources industry electronic information industry.

To cater to the market demand, better realize the industrialization of scientific research achievements, at present our committed to the industrialization of high technology quartz material system engineering design construction as well as quartz material processing technology consulting services, provide relevant scientific research projects of technology transfer, such as the preparation of high purity quartz sand technology the preparation of high purity superfine quartz powder technology, etc.). Welcome interested parties to our institute for negotiation.

Fine Silica Powder generally refers to quartz particles with SiO2 content higher than 99.99%. It is the main raw material of quartz glass quartz crucible for drawing mono-crystal silicon. Its high-grade products are widely used in large-scale very large scale integrated circuit, optical fiber, laser, aerospace, military other industries. Because these industries are related to the long-term development of the country, is a necessary condition for the sustainable development of high new technology of a country, so the strategic position of high purity quartz sand is very important, at present, the domestic needs of high purity quartz sand almost all rely on imports.

Main performance:

Quartz glass made of high purity quartz sand, its temperature resistance is as high as 1100-1200℃, 800℃ higher than ordinary glass, melting point platinum (platinum) melting point similar. The thermal expansion rate is very small, the average thermal expansion coefficient α=5.4 ×10-7, equivalent to 1/6 of ceramic, 1/20 of ordinary glass. Quartz glass has excellent spectral characteristics, can pass through infrared, ultraviolet. Quartz glass is a good acid - resistant material, equivalent to acid - resistant ceramics 30 times. It's 150 times stronger than stainless steel. Quartz glass is an excellent electrical insulation material, its resistance value is equivalent to 10000 times of ordinary glass, insulation strength of 250KV/cm, vacuum degree up to 10-6Pa.

High purity ultrafine quartz powder, our current technology can achieve the median diameter D50 control in 3-5μm, the total content of impurities control in 50ppm, belongs to the domestic leading level, the international advanced!

If you have any questions, please feel free to contact us.